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| author | Eduard Zingerman <eddyz87@gmail.com> | 2026-09-04 17:05:56 -0700 |
|---|---|---|
| committer | Alexei Starovoitov <ast@kernel.org> | 2026-09-04 18:17:30 -0700 |
| commit | 506ada89629ec7059b96ecfb0dc7d33ece0103ca (patch) | |
| tree | 0b07297409b68d2333fb4f0eae7f3b072eb68d4c /net/mac80211/uhr.c | |
| download | linux-stable-506ada89629ec7059b96ecfb0dc7d33ece0103ca.tar.gz linux-stable-506ada89629ec7059b96ecfb0dc7d33ece0103ca.zip | |
bpf: mark a NULL kfunc argument precisegrafted
check_kfunc_arg() allows bpf_register_is_null() for nullable arguments
w/o marking the underlying scalar register precise. Hence a checkpoint
created on such a path would prune against arbitrary scalar value.
Fixes: 3bda08b63670 ("bpf: Allow NULL buffers in bpf_dynptr_slice(_rw)")
Signed-off-by: Eduard Zingerman <eddyz87@gmail.com>
Link: https://lore.kernel.org/r/20260904-register-is-null-precise-fixes-v1-5-0f5a360ff15d@gmail.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Diffstat (limited to 'net/mac80211/uhr.c')
| -rw-r--r-- | net/mac80211/uhr.c | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/net/mac80211/uhr.c b/net/mac80211/uhr.c new file mode 100644 index 000000000..ca3b471b7 --- /dev/null +++ b/net/mac80211/uhr.c @@ -0,0 +1,27 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * UHR handling + * + * Copyright(c) 2025-2026 Intel Corporation + */ + +#include "ieee80211_i.h" + +void +ieee80211_uhr_cap_ie_to_sta_uhr_cap(struct ieee80211_sub_if_data *sdata, + struct ieee80211_supported_band *sband, + const struct ieee80211_uhr_cap *uhr_cap, + u8 uhr_cap_len, + struct link_sta_info *link_sta) +{ + struct ieee80211_sta_uhr_cap *sta_uhr_cap = &link_sta->pub->uhr_cap; + + memset(sta_uhr_cap, 0, sizeof(*sta_uhr_cap)); + + if (!ieee80211_get_uhr_iftype_cap_vif(sband, &sdata->vif)) + return; + + sta_uhr_cap->has_uhr = true; + sta_uhr_cap->mac = uhr_cap->mac; + sta_uhr_cap->phy = uhr_cap->phy; +} |